Please let us know where to stored the user entered records are stored in Creatio in the backend.
For example:
The user entered records in Stage A, once the Stage A is completed it will move to next Stage B then where to find the previous Stage A user entered records.
We do not recommend to delete columns in general, if you do not need this column you can set its usage mode to "none". If any process in your system reads all columns from the Account object this process will stop working after the column is removed even if the column itself is not used.
This is why it is better to change usage mode in the column setup in the configuration.
