SAP Message CB622 - Input check is restricted at the moment. Check entries carefully

Diagnosis
According to the definition of characteristic &V1&, the input check isto be called in a remote system (RFC destination &V2&) and display thismessage in the case of an error.
The RFC call returns the following error message: "&V3&&V4&".

System Response
According to the characteristic definition, the input check is to becarried out locally, this means in the current system or client, inthis case. Since there may be different data in the current system orclient than in the remote system, the input check may:
Reject the value although it is allowed in the remote system
Accept the value although it is not allowed in the remote system

Procedure
For this reason, check the data you entered very carefully even if thesystem accepts the entry, or wait untit the remote system is availableagain and repeat your entry.