Profile SAP_CUST recommended for copying from client 000

What causes this issue?

Client 000 contains central data which is accessed from other clients
if they do not have it, e.g. variants and SAPscript forms. These
objects are only written into client 000 in upgrades, so clients which
have copied these objects use obsolete objects.
The consistency of the application data is also not guaranteed in
client 000, so there can, for example be problems with number ranges
after a copy into the target client.
Client 000 should not contain any application data which is relevant
for you. If it does, it is an application or user error.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Only select the copy profile SAP_CUST for a copy from client 000.
If you do want to copy application data in a special case, the target
client will access obsolete data after installing a Support Package or
making an upgrade.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.