Common Syntax Errors in Map/Reduce Scripts

1. Invalid Return Data Format**

– **Error**: `INVALID_RETURN_DATA_FORMAT`

– **Example**:

 “`javascript

 define([‘N/search’], function(search) {

   function getInputData() {

     return search.create({

       type: ‘customer’,

       filters: [],

       columns: [‘entityid’]

     });

   }

   function map(context) {

     // Map logic here

   }

   function reduce(context) {

     // Reduce logic here

   }

   function summarize(summary) {

     // Summarize logic here

   }

   return {

     getInputData: getInputData,

     map: map,

     reduce: reduce,

     summarize: summarize

   };

 });

 “`

 – **Solution**: Ensure the `getInputData` function returns a valid search object or an array of key-value pairs.

 **Fixed Code Line**:

 “`javascript

 return search.create({

 “`

**2. Exceeding Governance Limits**

– **Error**: `SSS_USAGE_LIMIT_EXCEEDED`

– **Example**:

 “`javascript

 define([‘N/record’], function(record) {

   function map(context) {

     var rec = record.load({

       type: ‘customer’,

       id: context.key

     });

     rec.setValue({

       fieldId: ‘companyname’,

       value: ‘Updated Customer’

     });

     rec.save();

   }

   return {

     map: map

   };

 });

 “`

 – **Solution**: Optimize the script to reduce the number of governance units consumed, such as by batching operations or reducing the number of records processed.

 **Fixed Code Line**:

 “`javascript

 rec.save();

 “`

**3. Uncaught Error**

– **Error**: `UNEXPECTED_ERROR`

– **Example**:

 “`javascript

 define([‘N/record’], function(record) {

   function map(context) {

     try {

       var rec = record.load({

         type: ‘customer’,

         id: context.key

       });

       rec.setValue({

         fieldId: ‘companyname’,

         value: ‘Updated Customer’

       });

       rec.save();

     } catch (e) {

       log.error(‘Error processing record’, e);

     }

   }

   return {

     map: map

   };

 });

 “`

 – **Solution**: Add error handling to catch and log errors, preventing the script from failing unexpectedly.

 **Fixed Code Line**:

 “`javascript

 log.error(‘Error processing record’, e);

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