# Getting "Missing table" error during invoice generation

## Problem Description

When generating manual invoice, the UI is showing "Missing table: cdr\_reportdetailyyyymmdd"

![](/files/-MYlJAg7Dt9xdm6XGfUS)

Class 4 Fusion generates invoices based off on the pre-generated reports.  If you attempt to generate invoices for dates that have no report data, it will give you that error. 

You can check when you have report data in DB:

```bash
psql -U postgres
softswitch4v5=# \d+;

```

```
 public | cdr_report_detail                                    | table    | postgres    | 8192 bytes | 预统计
 public | cdr_report_detail20200608                            | table    | class4_user | 8192 bytes | 
 public | cdr_report_detail20200609                            | table    | class4_user | 8192 bytes | 
 public | cdr_report_detail20200610                            | table    | class4_user | 8192 bytes | 
 public | cdr_report_detail20200611                            | table    | class4_user | 8192 bytes | 
 public | cdr_report_detail20200612                            | table    | class4_user | 8192 bytes | 
```

{% hint style="info" %}
 Normally, this report data is not archived because it does not utilize much space.   Your system admin can drop those old cdr *report* detailyyyymmdd tables or you can use auto archiving facility in Class 4 switch to auto archive it after some times.
{% endhint %}

This cdr\_report table is also used for populating the statistics reports in the Class 4 Fusion UI.


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