SAP Message BT837 - All servers are busy: No resources available

Diagnosis
For processing parallel RFCs, the system searched for an applicationserver on which an RFC can be executed. Here it was established thatnone of the application servers currently have any free resources. Thisis a temporary problem.

Procedure
There are several ways to solve the problem:

  • Wait until the resources are available again

  • Increase the number of dialog work processes on the application servers
  • that are used for processing parallel RFCs
    • Install additional application servers on your system or include
    • additional application servers in the server group that is responsiblefor processing parallel RFCs (see transaction RZ12).