Usually people want to know could they increase the field size of GP tables?
The simple answer is we cannot increase the length of the dynamics GP fields. To understand why that so we need to know the deployment process of GP customization. To deploy customization in GP we need to extract our work and create a chunk and then add a code inside GP.
The Extract utility copies, or “extracts” new resources we’ve added to the development dictionary (with resource IDs of 22,000 and greater), and places them in a new dictionary. This process excludes any Microsoft Dynamics GP resources, Since Dexterity numbers these resources below 22,000. Although our dictionary doesn’t contain any Microsoft Dynamics GP resources, it maintains references to any main product resources we may have used.
The following illustration shows a development dictionary and the process for building a third-party dictionary.
This is true for “GP Fields” as well (as they are resources too). But it doesn’t mean nothing can be done. By customization this could be achieved for forms and reports. Not simple but workable task.