2242616 - Structure change at field level (convert table <TABLENAME>)

A table has been modified, but when trying to activate it in SE11, the error 'Structure change at field level (convert table <TABLENAME>)' occurs.

Check table <TABLENAME> (<USERNAME>/<DATE>/<TIME>)
Field name <FIELDNAME> can be provided in this system. Please do not use.
Old key field <FIELDNAME> has been deleted
Structure change at field level (convert table <TABLENAME>)
Check on table <TABLENAME> resulted in errors

In transaction SE14, the table can be found in a 'Revised' status.

SAP Netweaver release independent

Field <FIELDNAME>: Length change, ALTER TABLE is not possible, convert, conversion, Structure change at field level, field, convert table psa,datasource,rsds106,"error when activating data source" , KBA , BC-DWB-DIC-AC , ABAP Dictionary Activation and Conversion , How To