This is a demo to show how the dropdown could be filtered using the "usedcount" also counting how many time the name was used

There is also a mechanism used to prevent the deletion of the data if it is used in the other form

Meaning that the form that uses the data from a source form sets the counter about how many times the data have been used. And there is a delete rule on source form to check the "used counter" and fail the deletion of the used count is more than 0

 

 

 

 

 

 

 

 

 

Records in f

 

Recods in f2

 

 

Source code for the solution

<ac:structured-macro ac:macro-id="323f6007-384e-41ce-8d66-7d65c436f281" ac:name="confiform" ac:schema-version="1">
  <ac:parameter ac:name="formName">f01</ac:parameter>
  <ac:rich-text-body>
    <ac:structured-macro ac:macro-id="ef798ae4-d4a7-42c4-8c3e-4b93c2f56286" ac:name="confiform-entry-register" ac:schema-version="1">
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <p>
      <ac:structured-macro ac:macro-id="b9706e4b-d98e-4cdf-8452-07c715edc161" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">profileName</ac:parameter>
        <ac:parameter ac:name="fieldLabel">profileName</ac:parameter>
        <ac:parameter ac:name="type">text</ac:parameter>
      </ac:structured-macro>
    </p>
    <p> </p>
    <p>
      <ac:structured-macro ac:macro-id="4d2758d3-4c25-4466-84be-3340a02e5f5d" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">used</ac:parameter>
        <ac:parameter ac:name="fieldLabel">Used</ac:parameter>
        <ac:parameter ac:name="values">false</ac:parameter>
        <ac:parameter ac:name="type">hidden</ac:parameter>
      </ac:structured-macro>
    </p>
    <p>
      <ac:structured-macro ac:macro-id="6690c163-f11d-4f0c-b892-2c7b3f14459e" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">usedcount</ac:parameter>
        <ac:parameter ac:name="fieldLabel">Used count</ac:parameter>
        <ac:parameter ac:name="values">0</ac:parameter>
        <ac:parameter ac:name="type">hidden</ac:parameter>
      </ac:structured-macro>
    </p>
    <ac:structured-macro ac:macro-id="11c04fe8-aa43-49d0-a460-a0b1cec79e01" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="condition">used:true</ac:parameter>
      <ac:parameter ac:name="extras3">true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onModified</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry.id]&amp;usedcount=([entry.usedcount]+1)&amp;used=true</ac:parameter>
      <ac:parameter ac:name="who">f01:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <ac:structured-macro ac:macro-id="fef83b62-6842-4374-8d32-3b13abeb38ed" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="condition">used:false</ac:parameter>
      <ac:parameter ac:name="extras3">true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onModified</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry.id]&amp;usedcount=([entry.usedcount]-1)&amp;used=false</ac:parameter>
      <ac:parameter ac:name="who">f01:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <p>
      <ac:structured-macro ac:macro-id="965ed455-9a0a-461f-93ab-49fad96f376b" ac:name="confiform-field-definition-rules" ac:schema-version="1">
        <ac:parameter ac:name="condition">usedcount:&gt;0</ac:parameter>
        <ac:parameter ac:name="fieldName">You cannot edit this record (it is used (referenced) in other form)</ac:parameter>
        <ac:parameter ac:name="action">Validate on delete</ac:parameter>
      </ac:structured-macro>
    </p>
  </ac:rich-text-body>
</ac:structured-macro>
<ac:structured-macro ac:macro-id="3aebe087-a1d1-4b14-9367-7c87a4efd011" ac:name="confiform" ac:schema-version="1">
  <ac:parameter ac:name="formName">f11</ac:parameter>
  <ac:rich-text-body>
    <ac:structured-macro ac:macro-id="28803937-25f6-4738-92e5-ea53d8edae7f" ac:name="confiform-entry-register" ac:schema-version="1">
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <p>
      <ac:structured-macro ac:macro-id="578f2f88-9e05-4491-9a34-40c139c23152" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">profileName</ac:parameter>
        <ac:parameter ac:name="fieldLabel">profileName</ac:parameter>
        <ac:parameter ac:name="values">[12222622|f|profileName|true||]</ac:parameter>
        <ac:parameter ac:name="type">smartselect</ac:parameter>
      </ac:structured-macro>
    </p>
    <ac:structured-macro ac:macro-id="ea265827-080b-4f1f-b859-7728658da04f" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="extras5">true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onCreated</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry.profileName]&amp;used=true</ac:parameter>
      <ac:parameter ac:name="who">f:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <ac:structured-macro ac:macro-id="a9b4c52e-dc2c-412c-a353-0609b30ae72f" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="extras5">true</ac:parameter>
      <ac:parameter ac:name="condition">hasChanged(profileName):true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onModified</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry._previousState.profileName]&amp;used=false</ac:parameter>
      <ac:parameter ac:name="who">f01:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <ac:structured-macro ac:macro-id="ecd1c878-ddfb-4ce4-9f06-796a3334935b" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="extras5">true</ac:parameter>
      <ac:parameter ac:name="condition">hasChanged(profileName):true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onModified</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry.profileName]&amp;used=true</ac:parameter>
      <ac:parameter ac:name="who">f01:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <ac:structured-macro ac:macro-id="01a76f72-1c9f-44d5-be3b-38038a419dc0" ac:name="confiform-ifttt" ac:schema-version="1">
      <ac:parameter ac:name="extras5">true</ac:parameter>
      <ac:parameter ac:name="action">Create ConfiForms Entry</ac:parameter>
      <ac:parameter ac:name="event">onDeleted</ac:parameter>
      <ac:parameter ac:name="title">entryId=[entry.profileName]&amp;used=false</ac:parameter>
      <ac:parameter ac:name="who">f01:12222622</ac:parameter>
      <ac:rich-text-body>
        <p> </p>
      </ac:rich-text-body>
    </ac:structured-macro>
  </ac:rich-text-body>
</ac:structured-macro>
<p>Records in f</p>
<ac:structured-macro ac:macro-id="a08b6b66-1070-48a8-b56b-1416630b937a" ac:name="confiform-table" ac:schema-version="1">
  <ac:parameter ac:name="formName">f01</ac:parameter>
  <ac:rich-text-body>
    <p>
      <ac:structured-macro ac:macro-id="542e9d47-c466-4ae8-948d-45b961c32214" ac:name="confiform-field" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">profileName</ac:parameter>
      </ac:structured-macro>
    </p>
    <p>
      <ac:structured-macro ac:macro-id="fd0b30d1-4185-4a29-b5e3-83d6cb47aeaf" ac:name="confiform-field" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">usedcount</ac:parameter>
      </ac:structured-macro>
    </p>
  </ac:rich-text-body>
</ac:structured-macro>
<p> </p>
<p>Recods in f2</p>
<p> </p>
<ac:structured-macro ac:macro-id="b9cb1824-20f7-49f2-afd2-dfa95775899b" ac:name="confiform-table" ac:schema-version="1">
  <ac:parameter ac:name="formName">f11</ac:parameter>
  <ac:rich-text-body>
    <p>
      <ac:structured-macro ac:macro-id="b5bc0a57-2d00-4e21-973b-b98a3f369ca0" ac:name="confiform-field" ac:schema-version="1">
        <ac:parameter ac:name="fieldName">profileName</ac:parameter>
      </ac:structured-macro>
    </p>
    <p> </p>
  </ac:rich-text-body>
</ac:structured-macro>