Maximum execution time exceeded error while making an inbound REST callIssue While making a rest call from an external third party to ServiceNow, it throws an error as 'Transaction cancelled: maximum execution time exceeded' below: Error Log: 2020-11-18 18:13:04 (183) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 WARNING *** WARNING *** Transaction cancelled: maximum execution time exceeded2020-11-18 18:13:04 (184) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 WARNING *** WARNING *** (conn=3406295) (conn=3406295) Query execution was interrupted2020-11-18 18:13:04 (189) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 WARNING *** WARNING ***2020-11-18 18:13:04 (199) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 SEVERE *** ERROR *** com.glide.sys.TransactionCancelledException: Transaction cancelled: maximum execution time exceeded2020-11-18 18:13:04 (200) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 WARNING *** WARNING *** #314140 [REST API] RESTAPIProcessor : Handling exception com.glide.sys.TransactionCancelledException: Transaction cancelled: maximum execution time exceeded2020-11-18 18:13:04 (200) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 WARNING *** WARNING *** #314140 [REST API] RESTAPIProcessor : Unknown exception RESTRuntimeException:com.glide.sys.TransactionCancelledException: Transaction cancelled: maximum execution time exceededDetail: Transaction cancelled: maximum execution time exceeded2020-11-18 18:13:04 (200) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 DEBUG: #314140 [REST API] RESTAPIProcessor : End of Request Processing2020-11-18 18:13:04 (200) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 DEBUG: #314140 [REST API] RESTAPIProcessor : REST Request Processing time total_time_to_now_micro_secs=600529412020-11-18 18:13:04 (200) API_INT-thread-2 F78993F9DBE8A0105E65C3AF299619CB txid=3f8993f9dbe8 SEVERE *** ERROR *** Problem processing asynchronous servlet requestCauseThe most probable cause of this error would be that the execution of the query takes longer than what is defined in the Transaction Quota Rule. Once the set limit is reached, the instance will cancel any transaction in violation of the policy and notifies the user of the cancellation, and similar messages are also seen in the logs.ResolutionTo fix this issue, we would need to adjust the “Maximum Duration (seconds)” of the Transaction Quota Rules related to the type of request. To adjust these values please navigate to System Definition > Transaction Quota Rules. Since this is an inbound REST transaction, one of the below Transaction Quota Rule will need to be modified depending on the type of REST API: REST Import Set API request timeoutPrevents inbound REST Import Set API transactions from running for longer than 60 seconds. REST Table API request timeoutPrevents inbound REST Table API transactions from running for longer than 60 seconds. REST Aggregate API request timeoutPrevents inbound REST Aggregate API transactions from running for longer than 60 seconds. REST Attachment API request timeoutPrevents inbound REST Import Set API transactions from running for longer than 60 seconds. Related LinksPlease note that there is also a catch-all Transaction Quota Rule for REST and JSON. REST and JSON Catch All Default Rule for all REST and JSON transactions. This would be the last quota rule to come into consideration for an inbound REST transaction to ServiceNow.