Why Data Migration is so Hard and What to do About It

Why Data Migration is so Hard and What to do About It
On November 23, 2016, Posted by , In Migration

During a Salesforce deployment, data migration can typically consume as much as 60% of the total labor. When AwsQuality considers configuration, training, and project management, data migration stands out as the biggest cost of deployment.

There are four fundamental reasons for this:

Data is a mess: Duplicates and inconsistent/incomplete data are common culprits for the mess. Searches don’t work properly and reports begin to fail, giving you a database full of “dirty data”. Data deduplication solutions help speed up the process, and data can be deduped post-migration, reducing the overall cost of migration

Poorly formatted data for new database: In Salesforce, data should be placed properly in their respective fields in a new database. Automation can be used to help speed up the process, but only if your data is consistent.

In order to migrate the data, we must “map” where it goes: Mapping is the process for choosing a destination for our data in our new database from where it currently lives in our legacy system.  We may change the field names altogether which can cause confusion in the migration process if this renaming has not been documented.

Once our data is cleaned, formatted, and mapped, we are then tasked with importing the data: When we switch to the new database, we look for better search capability, better reporting, and a better user interface. The process of importing often requires a separate “import session” for each new table in the database. An import session requires us to import the data, assign a record number for each piece of data and its associated table, export that data for matching to related tables and then importing the matched data back into the database as a bundle.

This leads to the top three recommendations for how we can best prepare for success before data migration: 

  • Providing our consulting group with a list of reports we wish to compile before migration begins. This will give the consultants a sense of what tables and how many tables we require before they begin configuration.
  • Having realistic expectations about the amount of time and effort it may take to prepare and migrate our data. Our consultants can help set these expectations after a data review.
  • Engaging staff members who know our data well to help with preparations and data migration validation.
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