The following Error occurs in a Document: Party XYZ does not exist (XYZ represents the Party Role).
SAP Business ByDesign
This error can occur in multiple areas of the system.
Please see the different scenarios referenced in the Resolution section.
Other useful KBA:
Party with role &1 missing; Party Role; missing; error; /PAPR/PARTY_ADMIN; CL_A1SCRM_OPP_MSG; CL_A1SCRM_OPP_MSG; CL_A1SCRM_SOC_MSG; CL_A1SCRM_SRVREQ_MSG; CL_CDA_DOCIT , KBA , AP-SLO-SO , Sales Order , AP-CI-CIR , Customer Invoice Request , Problem