How can I stop and save the matching process for a large monthly credit card deposit with more 700 transactions? It's a lot to try and do it in one go.

Welcome to the Community space, @fullsail1.

Once your online banking is synced with QuickBooks, it will automatically update your bank transactions and it depends on the syncing time of your bank. However, you can create rules that automatically categorize your transactions.

To create a rule, here's how:

1. Go to the Banking menu or Transactions menu.
2. Select the Rules tab then click New rule.
3. Enter a name in the Rule field.
4. From the For ▼ dropdown, select Money in or Money out.
5. From the In ▼ dropdown, select the bank or credit card account.
6. In setting the rule conditions, make sure to specify whether the transaction must meet All or Any of the conditions.
7. Select the settings for the rule. Select the Transaction Type, Payee, and the Category to apply.
8. Click the Automatically add to my books option on the Rules window.
9. Select Save.

After creating a rule, QuickBooks automatically categorizes the bank transactions for you. This speeds up the review process so you can select Add to move the transactions directly to your register. You can also create targeted rules so specific transactions are automatically accepted into your books.

See this article, for more details: Set Up and Use Bank Rules. 

You can also check this article on how to assign, categorize, edit, and add your downloaded banking transactions.

I've also added our Banking and bank feeds page, it provides articles that can help you with banking concerns and steps in QuickBooks.

I can help you again if you have other concerns. Leave the details here and I'll get back to you as soon as possible. Have a pleasant day ahead.