
**FAQ dictionary**

- Mapping – the part of the import process where you configure how to import each column from your file. This process tells the Synerise platform about the relationships between the fields in your file with the fields in our database. Thanks to this, you don't need to change the field names in your own database.
- Template - Jinja expressions to combine several columns and/or mix them with strings, math operations, and so on.


  <details class="accordion"><summary>Can I add additional columns to my file while mapping?</summary><div class="accordion-content"><p>Yes. If you find out that your source file doesn&#39;t have all the necessary data while mapping, you can add a column with a tag, plain text, or currency in case of transactional imports, or even create a new column by using templates to combine columns you already have in your file. You can find more information <a href="/docs/crm/crm-import/">here</a>.</p></div></details>



<details class="accordion"><summary>Can I update a customer by importing data?</summary><div class="accordion-content"><p>Yes. If an imported customer already exists in Synerise, their data will be updated - new attributes will be added, existing ones will be changed.</p></div></details>



<details class="accordion"><summary>Can I import new and existing customers in one file?</summary><div class="accordion-content"><p>Yes - a customer who already exists in Profiles will be updated, and a new customer will be created.</p></div></details>



<details class="accordion"><summary>Can I import transactions with multiple currencies in one import?</summary><div class="accordion-content"><p>No. When you import transactions, you have to separate the files for transactions with each currency and prepare a separate import for each file. The currency has to be added while mapping with the &quot;add column&quot; function.</p></div></details>



<details class="accordion"><summary>What is the valid date format?</summary><div class="accordion-content"><p>In Synerise, if you want to import an attribute and treat it as a date, it must be in the YYYY-MM-DD format. If you have a different date format in the file, you can transform it while mapping.</p></div></details>



<details class="accordion"><summary>Can I add new attributes while mapping?</summary><div class="accordion-content"><p>Yes, if you want to map a column with an attribute that doesn&#39;t exist in your workspace yet, you can add a new attribute while mapping. You can find more information about customer imports <a href="/docs/crm/crm-import/">here</a>.</p></div></details>



<details class="accordion"><summary>Can I map the same column with two or more attributes?</summary><div class="accordion-content"><p>Yes, the same column can be imported as different attributes - simply map it several times.</p></div></details>



<details class="accordion"><summary>How many rows should the sample mapping file have?</summary><div class="accordion-content"><p>The file needed for data mapping should be a representative sample of the data you intend to import. Take up to 50 rows from the final file. </p></div></details>



<details class="accordion"><summary>Can I merge two or more columns while mapping?</summary><div class="accordion-content"><p>Yes, if you want to merge separate columns from your file you can use templates - Jinja expressions to combine several columns and/or mix them with strings, math operations and so on. Depending on your expression complexity, to obtain a desired result, you may need some programing skills. If you have trouble with merging columns, contact your Synerise representative.</p></div></details>



<details class="accordion"><summary>How long will my import take?</summary><div class="accordion-content"><p>The time needed to import data depends on the size of the file. You can check the status of your import in the progress bar.</p></div></details>



<details class="accordion"><summary>What values should the marketing agreement fields in my file have?</summary><div class="accordion-content"><p>To import marketing agreements such as email, sms or push, your fields must have one of the following formats: <strong>0/1</strong>, <strong>true/false</strong>, <strong>True/False</strong>, <strong>TRUE/FALSE</strong>. If you use different values, you can use templates to transform them.</p></div></details>



<details class="accordion"><summary>Can I switch off an import?</summary><div class="accordion-content"><p>Yes. If you&#39;re importing data from an FTP server, go to <code>Settings → Import</code> - this is the place where you will find all your imports and this is where you can switch an import off or on.</p></div></details>



<details class="accordion"><summary>What type of files can I import?</summary><div class="accordion-content"><p>You must use one of the file types supported by the application:</p> <ul> <li>Comma-separated file (CSV or txt),</li> <li>Json,</li> <li>XML (used only for a product feed).</li> </ul></div></details>



<details class="accordion"><summary>Can I edit an existing mapping?</summary><div class="accordion-content"><p>No. When you save the mapping it cannot be changed, you need to prepare a new mapping.</p></div></details>



<details class="accordion"><summary>Can I add two imports with the same name?</summary><div class="accordion-content"><p>No. Each import must have a unique name.</p></div></details>



<details class="accordion"><summary>Are there any restrictions to column names in my file?</summary><div class="accordion-content"><p>The column names shouldn&#39;t contain spaces or any special characters (only basic letters, digits, hyphens, and underscores) - this is especially important if you want to use templates.</p></div></details>


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<details class="accordion"><summary>Can I use the same mapping multiple times?</summary><div class="accordion-content"><p>Yes, if the file you want to import is of the same format as a previously prepared mapping, you can use your mapping again. Simply open it and click the &quot;import&quot; button in the upper-right corner.</p></div></details>
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<details class="accordion"><summary>What is the maximum allowed size of an imported file?</summary><div class="accordion-content"><p>150 MB.</p></div></details>








