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{{note|Deactivating or changing a value in the Data Inventory Manager does not change the forms that use the original value. Additional steps should be taken to prevent the original value from being used for data entry. These include updating and republishing all data entry forms that use the deactivated or changed value}}
For example, an existing “Mine Action Area Type” data element for lands land could include the values that are listed on the left side of the figure below. However, information managers can deactivate the values that their programmes don’t use and add the values that they do, as shown on the right side of the figure.
[[Image:AdminGuide_ModifyingDataElements.png|center|500px|''Modifying Data Elements'']]
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This lets information managers track the individual types of lands land they defined and documented in Chapter 1. Likewise, the ability to modify existing data elements gives information managers fine control over all the data elements they want to track in {{IMSMANG}} and how they are tracked.
While adding and deactivating new values is an effective and important capability within {{IMSMANG}}, information managers should approach changing the text of existing values carefully. Because many values are used across different data elements, for example, the values “Yes” and “No,” modifying these values can have unintended consequences.