Operational considerations and restrictions
Examine the operational considerations and restrictions to assist the planning and design of your mobile solution that is based on the IMS™ Mobile Feature Pack.
Operational considerations
The mobile solution that is enabled through the IMS Mobile Feature Pack provides access to IMS transactions through the IMS Transaction Manager. The transactions can then access IMS DB, DB2®, and other external subsystems. The solution requires IMS Connect.
WebSphere® optimized local adapters (WOLA), a functional component in WebSphere Application Server for z/OS® Liberty Profile, is included in the IMS Mobile Feature Pack. WOLA enables fast, efficient, and low-latency memory-to-memory exchanges between Java™ applications in WebSphere Application Server for z/OS Liberty Profile and programs that run in CICS®.
Restrictions
The IMS Mobile Feature Pack has the following restrictions:
Only transactions with a single input
message and a single output message are supported, although the message can contain multiple
segments. For non-response transactions or when IMS encounters
an error while processing the transaction, a GMOBA0920E message is generated that includes the DFS
message from IMS. 
- For COBOL to JSON data conversion restrictions, see COBOL to JSON schema mapping (IMS Explorer).
- For PL/I to JSON data conversion restrictions, see PL/I to JSON schema mapping (IMS Explorer).
