Message type: E = Error
Message class:  TR - Change and Transport System 
Message number: 057
Message text: Only PGMID = 'R3TR' and 'R3OB' currently allowed
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The SAP error message TR057 indicates that there is an issue with the transport request type being used in the system. Specifically, it states that only transport request types with program IDs 'R3TR' (for transport requests) and 'R3OB' (for object transport requests) are currently allowed. This error typically occurs when you attempt to use a transport request type that is not recognized or permitted by the SAP system.
Cause: Invalid Transport Request Type: The transport request you are trying to use may have an invalid program ID that is not 'R3TR' or 'R3OB'.
Configuration Issues: There may be configuration issues in the transport management system (TMS) that are causing the system to reject the transport request. System Restrictions: The system may have restrictions in place that limit the types of transport requests that can be processed.
Solution: Check Transport Request Type: Ensure that the transport request you are trying to use is of the correct type.
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