{"record":{"id":"bf6f9d413c7f09dc","repo":"appsmithorg/appsmith","slug":"pe-jsn-4000-bf6f9d","errorCode":"PE-JSN-4000","errorMessage":"Plugin failed to parse JSON \"{0}\"","messagePattern":"Plugin failed to parse JSON \"(.+?)\"","errorType":"exception","errorClass":"AppsmithPluginException","httpStatus":500,"severity":"error","filePath":"app/server/appsmith-plugins/googleSheetsPlugin/src/main/java/com/external/config/RowsBulkUpdateMethod.java","lineNumber":87,"sourceCode":"                        e.getMessage());\n            }\n        } else {\n            throw new AppsmithPluginException(\n                    AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR, ErrorMessages.INVALID_TABLE_HEADER_INDEX);\n        }\n        JsonNode bodyNode;\n        try {\n            bodyNode = this.objectMapper.readTree(methodConfig.getRowObjects());\n        } catch (IllegalArgumentException e) {\n            if (!StringUtils.hasLength(methodConfig.getRowObjects())) {\n                throw new AppsmithPluginException(\n                        AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR,\n                        ErrorMessages.EMPTY_UPDATE_ROW_OBJECTS_MESSAGE,\n                        e.getMessage());\n            }\n            throw new AppsmithPluginException(AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR, e.getMessage());\n        } catch (JsonProcessingException e) {\n            throw new AppsmithPluginException(\n                    AppsmithPluginError.PLUGIN_JSON_PARSE_ERROR,\n                    methodConfig.getRowObjects(),\n                    ErrorMessages.EXPECTED_LIST_OF_ROW_OBJECTS_ERROR_MSG + \" Error: \" + e.getMessage());\n        }\n\n        if (!bodyNode.isArray()) {\n            throw new AppsmithPluginException(\n                    AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR, ErrorMessages.REQUEST_BODY_NOT_ARRAY);\n        }\n        return true;\n    }\n\n    @Override\n    public Mono<Object> executePrerequisites(MethodConfig methodConfig, OAuth2 oauth2) {\n        WebClient client =\n                WebClientUtils.builder().exchangeStrategies(EXCHANGE_STRATEGIES).build();\n        final RowsGetMethod rowsGetMethod = new RowsGetMethod(this.objectMapper);\n","sourceCodeStart":69,"sourceCodeEnd":105,"githubUrl":"https://github.com/appsmithorg/appsmith/blob/8cd9021c24cdbea1c3c12c966073708e83db60c2/app/server/appsmith-plugins/googleSheetsPlugin/src/main/java/com/external/config/RowsBulkUpdateMethod.java#L69-L105","documentation":"PLUGIN_JSON_PARSE_ERROR (PE-JSN-4000). The rowObjects string could not be read as a JSON tree (JsonProcessingException from ObjectMapper.readTree). The plugin expected a JSON list of row objects.","triggerScenarios":"rowObjects contains malformed JSON - a trailing comma, unquoted keys, single quotes, a stray bracket, or a partial paste that is not complete JSON.","commonSituations":"User types JSON manually and makes a syntax error; a binding concatenates strings instead of producing JSON; copy-paste from a spreadsheet cell that strips quotes.","solutions":["Validate the rowObjects string with a JSON linter before saving the query.","Prefer building the payload with JSON.stringify(...) in JS rather than hand-writing it.","Read the ' Error: ...' suffix in the message - it carries the exact Jackson parse error location."],"exampleFix":"// before\n{\n  \"rowObjects\": \"[{rowIndex: 2, name: 'X'},]\"\n}\n// after\n{\n  \"rowObjects\": \"{{ JSON.stringify(Table1.selectedRows.map(r => ({rowIndex: r.__index, name: r.name}))) }}\"\n}","handlingStrategy":"validation","validationCode":"ObjectMapper om = new ObjectMapper();\nboolean valid;\ntry { om.readTree(methodConfig.getRowObjects()); valid = true; }\ncatch (Exception e) { valid = false; }","typeGuard":null,"tryCatchPattern":"try {\n    method.validateExecutionMethodRequest(config);\n} catch (AppsmithPluginException e) {\n    if (\"PE-JSN-4000\".equals(e.getAppsmithError().getCode())) {\n        // re-prompt user for valid JSON\n    }\n}","preventionTips":["Build rowObjects with JSON.stringify in JS, never by hand.","Run the payload through a JSON linter before saving the query.","Read the trailing 'Error: ...' text for the exact Jackson failure location."],"tags":["google-sheets","appsmith","json-parse","row-objects","malformed-json","bulk-update"],"backgroundTag":null,"analyzedSha":"8cd9021c24cdbea1c3c12c966073708e83db60c2","analyzedAt":"2026-08-12T22:14:19.293Z","schemaVersion":2},"datasetVersion":"2026-08-12T23:17:12.415Z"}