SAP Message AO484 - Coding masks have different structures. Conversion not possible.

Diagnosis
You tried to convert coding mask
V1v2
to coding mask
V3v4
However, these coding masks have different structures.
Converting coding masks is only possible when the source coding maskand the target coding mask have the same structure. The structures areconsidered the same only when positions '0' and 'X' in the coding masksare the same. The special symbols used, however, can be different.

Example
The following two coding masks have the same structure:
-000-X.X.X
/000.X-X-X
The following coding masks have different structures:
-000-X.X.X
/000-XXX
-000-0.X.X
-00-0X-XX