To convert a String or Number field to Formula field in Salesforce, you can do the following workaround.
We cannot convert String or Number field to Formula field in Salesforce.
Workaround:
1. Create a temporary field and use the temporary field in all the Visual pages, Classes, Triggers, Components, etc. where it is referred.
2. Delete the Number or String field.
3. Create a formula field.
4. Now use the created formula field in all the Visual pages, Classes, Triggers, Components, etc.
Cheers!!!
We cannot convert String or Number field to Formula field in Salesforce.
Workaround:
1. Create a temporary field and use the temporary field in all the Visual pages, Classes, Triggers, Components, etc. where it is referred.
2. Delete the Number or String field.
3. Create a formula field.
4. Now use the created formula field in all the Visual pages, Classes, Triggers, Components, etc.
Cheers!!!