Membership numbers are used in different ways by different clients. Sheep offers a number of options:

  1. Manual numbering: You have full control, allocate your own numbering
  2. Automatic: Sheep increments the membership number for each new member
  3. Random: Sheep allocates a random membership number (good if you don't want to disclose how many members you have). 

Membership numbers are preserved upon renewal.
Membership numbers are searchable.

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